Improvement in milk coolers or warmers



F. ILHUBBARD & MARY E. G ARNHAM.

MILK COOLER on WARMER. No. 176,862. Patented May 2,1876.

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; U ITED STATES PATENT ()rrrou.

FERNANDO D. HUBBARD AND MARY E. GARNHAM, OF OARTHAGE, N. Y.

IMPROVEMENT IN MILK COOLERS OR WARMERS.

Specification forming part of Letters Patent No. 176,862, dated May 2, 1876; application filed March 17,1876.

and it consists in a series of connected tubes or pipes suspended in the pans near the bot tom thereof, and provided with an inlet and outlet pipe at either end, respectively, and outside of the pan, whereby water of the temperature desired .to be imparted to the milk may be passed slowly through the tubes, and

thus either cool or heat the milk contained in the pan, as hereinafter particularly setiorth.

Figure 1 is a side elevation of a dairy milkpan, showing our apparatus in position therein; and Fig.2 is a plan of the same.

A is the milk-pan. erably mounted upon standards B, or in' any other way raised to a convenient height. 0 is the series of pipe,vvhich are arranged to extend longitudinally along the pan and connected at the ends by the pipes 0, into which theseries of pipes open, whereby all the pipes are united, and a continuous channel is formed through them. As many pipes 0 should be employed as, placed side by side at desired distances, shall extend acrossthe pan laterally,

as shown in Fig; 2. At one end of the pipes (J there opens into the cross-pipe cthe induction-tube D. At the other end, similarly ar- This is usually and pref-- ranged, is the eduction-tube D. These-tubes are formed each with the curve or elbow d, and so constructed and arranged that the crotch of the elbow will rest upon the rim of ture, may be pumped, or otherwise caused to circulate, up through the induction-tube into and through the set of pipesO, and, imparting its temperature to the milk, pass continually out through the eduction-tube, and by this means an effectual apparatus is provided for regulating or maintaining the temperature of the milk at any (lesired'degree.

What we claim as ourinvention, and desire to secure bytLetters Patent, is-

ing the temperature of milk in dairy-pans, consisting of the series of pipes O placed side by side at intervals across the width, and extending in right lines the length of the pan A, and united at the ends by the pipes c, together with the induction and eductiou tubes D and 1), respectively formed with the elbows (1, whereby the apparatus is suspended near the bottom of the said pan A, as described. Y

FERNANDO D. HUBBARD. MARY E. GARNHAM, Witnesses:

F. L. Bonus, 7 EGBERT E. WILMOTT.

An apparatus for maintaining or regulat-' 

